denney



(N9 Model.) 4 Sheets-Sheet 1.

H. DENNEY. MACHINE FOR MAKING PAPER TUBING.

BREE

WITNESSES.

(No Model.) 4 SheetsSI1eet 2.

, H. DENNEY. MACHINE FOR MAKING PAPER TUBING.

No. 445,135; I Patented Jan. 20, 1891.

WIN/ E8858. INVENTOH ATTOH EYS as 00.. Pum'oumo; wAsmNGToM o c (NoModel.) 4 SheetsSheet 3.

H. DENNEY. MACHINE FOR MAKING PAPER TUBING.

No. 445,135. Patented Jan.20,189 1.

' W/TNEZSSES: I. INVENTOR ATTOH 5Y8 (No Model.)

4 SheetsSheet 4.

H. DENNEY. MACHINE FOR MAKING PAPER TUBING.

Patented Jan. 20, 1891.

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A WUNESSES s llllllllllll g 4 \mmlll 1| I A TTORNEYS STATES IIARMERDENNEY, OF BROOKLYN, NEV YORK.

MACHINE FOR MAKING PAPER TUBING.

SPECIFICATION forming part of Letters Patent No. 45,135, dated January20, 1891.

Application filed April 24:, 1890.

To all whom it may concern:

Be it known that I, HARMER DENNEY, of llrooklymin the county of Kings,in the State of New York, a citizen of the United States, have inventedcertain new and useful lmprovements in Machines for Making Paper Tubing,of which the following is a specification.

This invention relates to an improved machine for making paper tubingfor use as an interior or exterior conduit for electric con ductors.

The object of my invention is to provide a new and improved machinewhich will automatically produce such paper tubes in continuous lengths.

The invent-ion consists in the construction and combination of parts anddetails, as will by fully described and set forth hereinafter, and thenpointed out in the claims.

In the accompanying drawings, Figure l is a longitudinal elevation of myimproved machine for making paper tubing. Fig. 2 is a plan view of thesame, parts being broken out and others shown in horizontal section onthe line 00, Fig. 1. Figs. 3, 4:, 5, and G are crossseetional views ofmy improved paper tubing, showing the cylindrical layers forming it.Fig. 7 is an enlarged detail vertical transverse sectional view on thelines 7 7 7 7, Fig. 1. Figs. 8, 9, 10, 11, and 12 are verticaltransverse sectional views on the lines 8 8, 9 9, 10 1O, 11 11, and 1212, respectively, of Fig. 1. Fig. 13 is an enlarged detail verticallongitudinal sectional view of the tubeclutching device. Fig. 14L is avertical transverse sectional view of the same on the line lat 14., Fig.13. Fig. 15 is a vertical longitudinal sectional view of thereversing-gear, and Figs. 16 and 17 are vertical transverse sectionalviews of the same on the lines 16 1G 17 17 of Fig. 16.

Similar letters of reference indicate corre sponding parts.

The paper tube A which is to be made on my improved machine has beendescribed and claimed in an application filed by me on the 17th day ofApril, 1890, Serial No. 3%,310, and is not claimed in this application.It is composed of a series of cylindrical layers of paper A A A &c.,each having a longitudinal seam a a a which seams are so arranged as tobreak joints-that is to say, one seam Serial No. 34:9,331. (No model.)

does not coincide with the other. The outer most seam is covered by astrip of paper A pasted on the same for the purpose of pre venting theshell from separating at said seam. The paper strips for making thecylindrical layers A A A and the paper for making the strip a" are woundon the reels B, 3 B and B, suitably arranged in relation to the frame Cof the machine. The strip of paper from the first reel B is drawnslightly downward over a mandrel D, held at one end in a bracket D,projecting from the end of the machineframe C. A short distance fromsaid bracket D a bracket E projects from the machine, and is provided inits upper surface with a semicylindrical guide g for guiding the bottomportion of the tubular cylindrical shell A. A lever F is pivoted to thebracket E, and is provided in its under side with asemi-cylindriealguide f, the sides of which are adapted to fit on the top of thecylindrical shell A surrounding the mandrel D, which lever F is pressedupon the top of the cylindrical shell by a weight G, suspended from thefree end of said lever. The paper strip from the second reel 13' isdrawn upon the first cylindrical shell A from the bottom to the top, sothat the longitudinal seam a of said second cylindrical layer will be atthe top, whereas the longitudinal seam a of the first cylindrical shellA was at the top.

The two cylindrical layers A and A together, and while still on themandrel D, are drawn between the bracket E and lever F both provided inthe adjacent surfaces with suitable semi-cylindrical guides g f thelever F being weighted by a weight G and pressed upon the upper surfaceof the second cylindrical layer 1 The paper strip from the reel B whichforms the third cylindrical layer A, passes upon the surface of thelayer A from the top downward, so that the seam a of said thirdcylindrical laverA will be at the bottom. he three layers A, A and Atogether, and while still on the mandrel pass between the bracket E andthe lever F", both of which are provided with semi-cylindrical guides fin the adjacent surfaces, which lever F is weighted by a weight G andpressed upon the layer A The strip of paper from the reel B passes fromthe bottom upward, so as to rest against the bottom scam a of the thirdcylindrical layer A and to close the same. The said strip also passesthrough a box ll containing some suitable paste; or the paste can beapplied on the said strip in any other suitable manner. The threecylindrical layers A A A together with the strip Aflare drawn over ablock J having a transversely-curved longitudinal groove in its top, andwhich block is heated from a burner K below it. A block J rests on thetop of the tube directly above the block J, said block J being securedto a lever J which is pressed downward by a weight J suspended from thefree end of the same. The heated block dries the adhesive materialapplied to the strip from the reel B, causing the said strip to adherevery rapidly and thus prevent the opening of the bottom seam a The paperstrips from the first reel B and from the third reel are not providedwith adhesive material; but the paper strip from the intermediate reel13*, which strip forms the intermediate cylindrical layer, passesthrough a box L containing adhesive material,.so that both faces of saidstrip unwound from the reel B are provided with adhesive material, andthus the central tubular cylindrical layer A is pasted to the inner andouter layers A and A, respectively.

The longitudinal screw-spindle M, mounted in the frame C of the machineis provided at its end with two loose pulleys H and M which are rotatedin opposite directions by suitable belts, and both of which are providedwith a clutch device adapted to engage a clutch device on the spindle,so that accordingly as one pulley or the other is engaged with thespindle said spindle is rotated in one direction or the other. Half ofthe spindle M is provided with a right-hand screwthread and the otherhalf with a left-hand screw-thread, so that the two clutching devices N,mounted on the spindle, alternately travel toward and from each other.

The clutching device N consists of a bracketplate 0, dovetailed on theframe 0 in such a manner as to slide in the direction of the length ofsaid frame, as shown in Fig. 1%. Said bracketplate is provided with asleeve 0, parallel with the screw-spindle, said screw-spindle passingthrough a nut formed in a projection O of the bracket-plate. In thesleeve 0 a sleeve P is mounted to slide lengthwise therein, whichsleeveP is provided on one end with a series of longitudinal slots P,each containing a jaw P which isguided to move radially in relation tothe longitudinal axis of the sleeve P. At one end of the sleeve 0' a camQ is pivotedfor each jaw P, the free ends of said cams resting innotches in the outer edges of the jaws P From that end of the sleeve 0opposite the one provided with the cams Q, two rods R project, whichpass through apertures R in the flange R of the sleeve P. Nuts R arescrewed on the outer ends of said rods, and between said nuts and theflange R springs R are coiled on said rods, which springs press thesleeve P in the direction of the arrow 41:, Fig. 13. Each brackctplate Ois provided with an apertured lug S, through which a rod '1 passesfreely, said rod being guided on the frame of the machine to slide inthe direction of its length and being provided with adjustable stops T,against which the lugs S can strike. If, for example, a clutching deviceN begins to move in the inverse direction of the arrow w the frictionbetween the surface of the paper tube which passes through the sleeve Pand the edges of the jaws P is sufficient to retard those jaws for ashort time, and as the sleeve 0 continues to move in the inversedirection of the arrow w the cams O are turned on their pivots and thejaws are forced down and grip the tube more firmly until the hold ofsaid jaws on the tube is sufficient to carry the tube along.

hen the direction of rotation of the spindle is reversed, the clutchingdevice above mentioned begins to move in the direction of the arrow 00',and the gripping-jaws P are disengaged from the tube and slide over thesame in the inverse direction of the arrow 00. The springs R constantlypress the sleeve P and jaws P in the direction of the arrow 0:, wherebythe jaws 1? remain pressed inward and in gentle contact with thepaper-tube. Then the gripping or clutching device N moves in thedirection of the arrow as the jaws P give outward slightly.

The rod T is provided with two forks U and U which engage the collars Vand V keyed on the hubs of the pulleys M M in such a manner that theycan turn with the same and slide upon the same lengthwise. On thespindle M two collars m are fastened, and between the same an eccentricn is fixed 011 the spindle, which eccentric n is surrounded by a largereccentric 0, having an upwardly-projecting arm 19. The eccentricities ofthe eccentrics nand 0 are opposite, so that the exterior surface of theeccentric o is concentric with the axis of the spindle M. hen one of theclutching devices N has completed its stroke in the direction to theright, Fig. 1, its lug S strikes against a stoppiece T on the rod T andmoves said rod T to the right, whereby the two forks .U and U are alsomoved to the right, and the clntchcollar V is moved out of the path ofthe arm 12 of the eccentric o, and the projection of the clutch-collar Vis moved into the path of said arm 19. As said clutch-collar rotates itsprojection strikes the arm 19 of the eccentric 0, thereby turning saideccentric in such a manner as to cause it to bind on the hub of thepulley M. The screw-spindle M is there by reversed, so that the saidabove-mentioned clutching device N moves toward the left, and when itcompletes its stroke in the direction toward the left the rod T isshifted toward the left, and the clutch-collarV is moved out of the pathof the arm 19, and the clutch-collar V is moved into thepath of the arm13, where- IIO by the eccentric o is turned in such a manner that it isdisengaged from the hub of the pulley M and is engaged with the hub ofthe pulley M so that said pulley M will be locked on the spindle, andthe spindle thus rotated in the inverse direction, and so on.

In this application I have shown but not claimed the combination ofmeans for forming a core and means for covering the same, clutchingdevices adapted to grip or clutch the tube formed constantly travelingin 0pposite directions, a screw having a right and left hand thread foroperating said clutching devices, and means for automatically reversingthe direction of rotation of the screw. :Ihese partsin combinationhavebeen claimed 1n my application, Serial No. 341,934, filed February27, 1890, for an improvement in making paper tubing.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a machine for making paper tubing, thecombination, with a mandrel, of a series of pairs of oppositesemi-cylindrical guides embracing the mandrel, the lower guide of eachpair being fixed and the upper one mov able, and weights for pressingthe movable guides downward, substantially as set forth.

2. In a machine for making paper tubing, the combination, with amandrel, of a fixed block below the mandrel, a hinged block above themandrel, a weight for pressing the hinged block downward, and a burnerbelow the fixed block, substantially as set forth.

3. In a machine for making paper tubing. the combination, with amandrel, of a series of reels arranged alternately below and above themandrel, independent devices for pressing the strip from each reelindependently upon the mandrel or upon the strips previ ously applied onthe mandrel, and of two tube-gripping devices mounted to reciprocate inopposite directions, substantially as set forth.

4-. In a machine for making paper tubing, the combination, with amandrel, of a series of reels arranged alternately below and above themandrel, independent devices for pressing the strip from each reelindependently upon the mandrel or upon the strips previously applied onthe mandrel, and of two tube-grippin g devices mounted to reciprocate inopposite directions, and a rightand left hand screw-spindle foroperating said clutclr ing devices, substantially as set forth.

5. In a machine for making paper tubing, the combination, with amandrel, of a series of reels arranged alternately above and below themandrel, independent devices for pressing the strip of paper from eachreel independently upon the mandrel or upon the strips previouslyapplied upon the mandrel, tube-clutching devices for drawing lengthwisethe tube formed from the strips upon the mandrel, a spindle having rightand left hand screw-threads engaging said clutching devices, a slidingrod operated by the clutching devices, and a reversing-gear operated bysaid rod, substantially as set forth.

In testimony that I claim the foregoing as myinvention I have signed mynamein presence of two subscribing witnesses.

HARMER DENNEY.

IVitnesses:

Oscar: F. GUNZ, W. REIMHERR.

